vacuum equipment

Vacuum pump field dark horse came, through extensive cooperation with atlas, SPECK, and other well-known international brands, to provide customers with high-quality, authentic vacuum equipment and professional vacuum system design, engineering, after-sales service! A large number of new processing centers, sophisticated testing equipment, to ensure the accuracy and stability of the product, the combination of machinery and technology, the user of the product experience will be greatly enhanced, in addition, the mature technical team strong innovation ability, can make the product in the performance and appearance of the superior. Thus, a vacuum pump field of the dark horse is about to enter the market. The goal is to achieve the national top level vacuum pump. No matter the product structure, performance and appearance, have been carefully designed. In the future, we will launch many new products, intelligent vacuum pump is one of our key technology breakthroughs, so t...

The screw vacuum pump is an air pumping device that USES a pair of screws to perform reverse rotation at the same pace in the pump shell to provide suction and exhaust functions. It can be applied in the field with more dust. Therefore, it is a basic job to carry out purging of the screw vacuum pump How to purge the screw vacuum pump I. cleaning and purging Screw vacuum pump cleaning purge is mainly used to remove corrosive, harmful or thick substances, such as: tree esters. Clean and purge usually before stopping the pump, turn off the gate valve of the inlet of the screw vacuum pump, and run it for 20 ~ 30 minutes after filling the inlet with hydrogen or water steam, to purge the screw vacuum pump cavity screw, and clean the residual process steam or thick adhesive material on the surface of the cavity. Refrigeration purge Refrigeration purge is used to refrigerate the inner cavity of the screw stator and screw vacuum pump. Screw vacuum pump, air inlet into the p...

Rules for operation of general wet Roots vane vacuum pump units General Roots vacuum unit operation in accordance with the relevant rules of dry Roots vacuum pump, but also need to pay attention to the following related matters; 1) Pump should be run empty before use to check whether the rotating parts are flexible, whether there is blocking phenomenon, whether the rotation direction is correct, whether there are abnormal noise and vibration in the pump. Before starting, pull the pulley by hand, check whether there is any obstacle, and inject proper amount of clean water, and inject the prescribed grease into the gear box. Connect to the power supply, click a few times first, observe whether the situation is normal, and then measure the current after starting. If it is found that there is no indication on the vacuum gauge or the reading is very small, it is necessary to check whether the valves on the gas-water separator are sealed, whether the valves on the suction pipe...

With the whole level of dry vacuum pump, we should accelerate the ability of product production, enhance the performance of its strength in all aspects, increase investment in product development, actively learn advanced skills in all aspects, enhance the ability of self-development, and then show the function of dry pump. Dry vacuum pump is the trend of future career development. Although it is not used much now, besides the high price, there are also users who do not know the dry vacuum pump well and can not see the future economic benefits brought to enterprises. Here, how to optimize the selection of dry vacuum pump is emphasized. For these different types of dry vacuum pumps, we all hope to reduce their physical scale. But this is opposite to the pumping rate of the vacuum pump, because the pumping rate of the vacuum pump is proportional to the volume of the vacuum pump, small physical scale means small volume. Of course, there is also an important factor affecting ...

Deep decarburization of vacuum furnace after disposal ultimately will be based on the disposal of oxygen to the resolution of molten steel in the abundance of content is still high, so that more than three hundred, they should increase the air flow under this situation, to promote the whole air traffic in 150 cubic meters per hour, and opened the booster pump, the whole vacuum to around 1 milli mpa, guarantee the circulation of misery time nine minutes, then, can effectively reduce them to 15 mm around, just water abundance of oxygen content is low, also can choose separation with carbon content and oxygen content. With the decrease of the carbon content in the molten steel, the decarbonization rate becomes slow, and the carbon diffusion becomes a restricted link. In order to continue to stop the decarbonization, other measures must be taken. At this point, according to the light disposal after the oxygen content to determine the resolution. First, when the abundant oxygen content ...

Vacuum sintering furnace brazing: in a vacuum state, a liquid metal having a lower melting point than the base metal is used to fill the metal gap of the substrate by capillary suction between the two workpieces to form a firm bond. Annealing in a vacuum sintering furnace: Eliminating the reduction of tissue inhomogeneity and removing internal stress improves its plasticity. Tempering in a vacuum sintering furnace: Eliminating internal stresses during machining. Vacuum quenching: (gas quenching, oil quenching) rapid cooling after heating to harden the material. Vacuum carburization: Carburization is carried out in a vacuum carburizing atmosphere under vacuum heating. Vacuum ion carburizing: A new vacuum chemical heat treatment for hardening metal surfaces. Vacuum chemical heat treatment: vacuum carbonitriding, vacuum boronizing and other processes (improvement). Vacuum glow ion nitridation: Generally, ion nitridation is performed under a high voltage DC electric field...

The vacuum atmosphere furnace forms a vacuum environment with negative pressure inside the closed furnace body and fills the body with thermal media water. The water is heated by combustion or other means, and then evaporates and condenses to the heat exchanger. The water to be heated is then heated by the heat exchanger. Vacuum atmosphere furnace is used for heating equipment in the vacuum environment, mainly used for ceramic firing, vacuum refining, electric vacuum parts degassing, annealing, brazing of metal pieces, and ceramic - metal sealing. The furnace body is divided into upper and lower parts. The upper part is a vacuum chamber (negative pressure steam chamber), in which a tubular steam-water heat exchanger is installed to heat the circulating water flowing through the heat exchanger. Operating principle: when the vacuum hot water boiler is in operation, the heat medium water in the furnace body under the vacuum negative pressure absorbs the heat energy released by fuel com...

Vacuum furnaces are definitely an indispensable equipment in today's precision equipment. Relatively speaking, they will choose some different combinations according to the principle of mechanics. In fact, his advantages are still very extensive. . The vacuum furnace can select the appropriate steel plate according to the principle of mechanics, and it can be fully pressed according to the scientific combination. The overall appearance is very strong, and it is particularly strong and durable. It also has certain reliability, and the entire surface is sprayed. The anti-corrosion effect is relatively large, and from the appearance point of view, the whole is beautiful and generous. The whole vacuum furnace has some high-quality steel plates processed by the bending machine. The surface is continuously sprayed, and the surgery, more or less, will not touch. Before, a series of air will be formed, which can effectively and completely insulate. The layer is convected to effectively ...

Vacuum brazing furnace heat-resistant materials are mainly used for heating components of vacuum brazing furnaces. What are the heat-resistant materials of vacuum brazing furnaces? 1. Thermosetting resin Thermosetting resins are phenolic resins, polyimides, epoxies, silicone resins, etc., and these materials are not thermoplastic, so they can be used at high temperatures for a long period of time. Such materials are the best in the heat-resistant materials of vacuum brazing furnaces. In general, epoxy resins can be used at temperatures above 200 degrees Celsius, while other materials can be used at temperatures above 300 degrees Celsius for long periods of time, especially aldehyde phenol resins, which are a high temperature resistant and ablation resistant material in the space shuttle. More used on it. 2. Special engineering plastics This material has a high melting point, a high thermal decomposition temperature, and the strength and rigidity of these materials are also ...

1. The low temperature of the vacuum gas quenching furnace can not reach the test index, then you have to observe the change of temperature, the temperature is very slow, or the temperature has a rising trend after the temperature reaches a certain value. The former should check the vacuum atmosphere. Whether the furnace is dried before the furnace is tested at low temperature, the studio is kept dry, and then the test sample is put into the working chamber and then tested. The test sample in the working chamber is placed too much, so that the wind in the working chamber cannot be fully circulated. After excluding the above reasons, it is necessary to consider whether it is a fault in the refrigeration system, so it is necessary to ask the professional of the manufacturer for maintenance. 2. In the high temperature test of the vacuum gas quenching furnace, if the temperature change does not reach the test temperature value, the electrical system can be inspected and the faults can...

The difference between atmosphere furnace and vacuum furnace, vacuum thermal disposal skills, namely, the comprehensive skills of vacuum skills and thermal disposal skills, are all and part of the thermal disposal process in the vacuum form. China divides vacuum into four types: low, medium, high and ultra-high vacuum. At present, the vacuum degree of most vacuum heat treatment intermediate frequency furnaces is 1.33~1.33 x 10-3pa. The difference between the atmosphere furnace and the vacuum furnace is that the vacuum thermal treatment can simply complete all the thermal treatment processes, such as quenching, annealing, tempering, carburizing, nitriding, gas quenching, oil quenching, nitrite quenching, water quenching, etc. in the quenching process, can also be vacuum brazing, sintering, appearance disposal. The difference between the atmosphere furnace and the vacuum furnace is that the vacuum heat treatment furnace has high thermal efficiency, which can achieve rapid leveling and...

Vacuum Furnace Manufacturer: How to Maintain Vacuum Furnace Nowadays, many industries will use vacuum furnaces in the products of vacuum furnaces manufacturers. How to maintain them when using vacuum furnaces? Below the high temperature vacuum furnace small braiding you to learn about it. 1. For valves and other accessories, installation instructions should be maintained. High temperature vacuum furnace. 2. If maintenance is to be carried out, the vacuum furnace will be cut off to ensure the safety of operators. 3. Clean the appearance of the vacuum furnace equipment of the vacuum furnace manufacturer and keep it clean. 4. Check circulation water flow. If there is no flow, add water pipes and so on. 5. Dust exists in the vacuum furnace equipment of the vacuum furnace manufacturer, which should be rubbed with alcohol. 6. Regular refueling of transmission parts of vacuum furnace. High temperature vacuum furnace. 7. When disassembling and assembling sealed parts, it is necessary to cle...

Heat treatment vacuum furnace is a comprehensive technology combining the two specialties of vacuum technology and heat treatment, which means that all and part of the heat treatment process are carried out under the vacuum state. China divides vacuum into low, medium, high and ultra high vacuum. At present, the working vacuum degree of most heat treatment vacuum furnaces is ~1.33 10 ³. Pa. The vacuum furnace for heat treatment can realize almost all heat treatment processes, such as quenching, annealing, tempering, carburizing and nitriding, and can realize gas quenching, oil quenching, nitrate quenching and water quenching in the quenching process, as well as vacuum brazing, sintering and surface treatment. Heat treatment vacuum furnace high thermal efficiency, can achieve rapid temperature rise and drop, can achieve no oxidation, no decarburization, no carburization, can remove the workpiece surface phosphorus chips, and have degreasing degassing, so as to achieve the effect of ...

The pressure in the chamber of a vacuum furnace can be pumped into an industrial furnace below atmospheric pressure. Vacuum furnace is electrically heated, the surface of the workpiece heated is not oxidized, decarbonized, small deformation and good mechanical properties. It is advantageous to remove impurities by smelting metal in vacuum furnace. The finished product has fewer pinholes, smaller segregation and good quality. Vacuum furnaces are suitable for the smelting and heating of high quality, high purity and refractory metals, such as tungsten, molybdenum, tantalum, niobium, titanium, heat resistant alloy steels and magnetic materials, electrical materials, high strength steels, stainless steel, tool steels, die steels, etc. Vacuum furnaces appeared around the 1930s. In 1927, the vacuum annealing furnace for electrical materials was made in the United States. In 1953, vacuum consumable arc furnace was used to smelt titanium sponge in industry. Vacuum induction furnaces have be...

The vacuum sintering of cemented carbide has strict requirements on temperature. The temperature rise rate of each heating stage should not be too fast, otherwise it will cause cracks and deformation of the product. If the degumming temperature is too high, the degumming will be too fast, and bubbles will be formed. The degumming temperature will be too low. The degumming is not complete; the deoxidation temperature is too high, and it is easy to form cobalt aggregation and surface "bubbling", and the deoxidation temperature is too low, which may cause deoxidation to be incomplete within a predetermined time. Too low or too high a sintering temperature will deteriorate the toughness of the product and reduce the coercive force. In order to ensure the quality of the product, the cemented carbide sintering process requires that the pre-burning temperature and the following temperature tracking error not exceed ± 50 ° C, the temperature overshoot does not exceed 35 ° C; the s...

High temperature furnace, as the name suggests is a very high temperature electric furnace, the highest can reach more than 1800 degrees, so a friend will ask, so high temperature electric furnace, operation will not accidentally encounter furnace shell burns? Because the operation will inevitably touch. So small make up tell you: will never be scalded. Taking the high temperature furnace products of our company as an example, our high temperature furnace has the following three safety requirements: 1, the use of three layers of insulation, respectively: aluminum silicate fiberboard, aluminum oxide fiberboard, aluminum oxide (polycrystalline) fiberboard, not only good insulation effect, and energy saving effect is more than 80% of the old electric furnace. And long-term use of furnace, shell temperature is less than 45 degrees, the temperature will not produce burns to the human body. 2. The closed-loop technology thyristor module is adopted for trigger control, and the phase-shifti...

The nitriding furnace is an energy-saving cycle operating furnace. It is mainly used for gas nitriding treatment of various steel machinery parts, steam machinery parts, automobile crankshafts, automobile piston rings, motorcycle brake pads and mold pieces. The structure of the nitriding furnace is mainly composed of a furnace body, a heating element and a temperature control system. The shell of the furnace body is welded by steel and steel plates, and the interior is made of ultra-light high-alloy foam bricks to form a furnace (or a full-fiber cotton structure). The insulation layer is made of aluminum silicate refractory fiber and diatomaceous earth (or vermiculite powder). The bulk material structure is used to improve the heat preservation performance of the furnace body, and the heating element is placed on the wire brick and has a small wire hook for positioning. A heat-resistant plate is welded into the furnace and the basket, and the processed workpiece is placed in the bas...

In the processing and production of vacuum heat treatment, the surface of the processed product often has problems in "coloring". Obtaining a bright, non-colored product processing effect is a common goal pursued by manufacturers and users of vacuum furnaces. So what is the reason that affects the brightness? What factors are related to it? How can the product be bright? This is another issue that is of great concern to frontline technicians and workers. The coloring is caused by oxidation, and the different colors are related to the temperature generated and the thickness of the oxide film. Quenching in oil at 1200 °C will also cause surface carburization and melting. If the vacuum is too high, it will cause the elements to volatilize and bond; these will damage the surface brightness. In order to obtain a better bright surface, the measures to be taken into consideration and considered in production practice are as follows: 1 First, the technical sp...

Хотя уголь по-прежнему является основным источником энергии в Китае на этапе пропорциональности, промышленные печи не только сильно загрязнены, но и невыгодно применяют высокотемпературную технологию сжигания воздуха. Поэтому замена угля и других видов твердого топлива нефтью и газом является стратегическим направлением энергосберегающего развития промышленных печей в Китае. Дальнейшее развитие и совершенствование технологии сгорания предшественников Мы будем совершенствовать и продвигать высокотемпературную технологию сжигания воздуха или направление энергосберегающего развития промышленных печей в будущем. Технология повышения температуры печи на основе высокотемпературного и высокоэффективного пламени, технология равномерного распределения температуры в печи и технология контроля N0x являются основными технологиями, способствующими сжиганию кислородного топлива, а также будущим направлением развития. В то же время вопросы сокращения выбросов CO2 и их хранения станут ...

Although coal is still the main energy source in our country in the proportionate stage, industrial furnaces are not only polluted severely, but also disadvantageous to implement high temperature air combustion technology. Therefore, replacing coal and other solid fuels with oil and gas is the strategic direction of energy-saving development of industrial furnaces in China. Further development and improvement of combustion technology of predecessors It is also the direction of energy-saving development of industrial furnaces to improve and popularize high temperature air combustion technology. On the basis of guaranteeing high temperature and high efficiency flame, technology of improving furnace temperature, technology of making furnace temperature average distribution, and N0x control technology are the core technology to promote oxygen-enriched combustion, and also the future development direction. At the same time, the emission reduction and storage of C02 will beco...